Radiator



A. KEHIVI.

RADIATOR.

APPLICATION FILED MAR. I2, 19H. RENEWED MAY 16. 1921.

m. m m .m 5 m e W M m d8 3 n m D1 5 2 E 1, F 1 a rPWIL. i #H wry 2|. 4 W 2 2 I R f A w 3 \E 8 e J 9 .EI! 11 PM... Im. L

A. KEHM.

RADIATOR.

APPLICATION FILED MAR-12.1917- RENEWED MAY I6, 1921- Patented July 5, 1921.

3 SHEETS-SHEET 2.

A J M w r p I /7 ms y w A. KEHM.

RADIATOR.

APPLICATION FILED MAR. 12,1917. RENEWED MAY 16, I92].

Invent)? 3 SHEETS-SHEET 3.

Ill!!! Patented July 5,

1| Ila gy from the ceilin UNITED s AUGUST KEHM, oromoaeo, rumors.

' RADIATOR.

Specification'of Letters Patent.

Patented July 5, 1921.

Application filed March 12, 1917, s erial No. 154,343. Renewed May 16, 1921. Serial No. 469,954.

To all whom it may concern: Be it known that I, AUGUST KEHM, a citizen of the United States, and resident of Chicago, countyof Cook, andState of Illinois, have invented certain new and useful Improvements in Radiators, of which the following is a specification, and which are illustrated in the accompanying drawings,

forming a part thereof.

The invention relates to radiators and more particularly to those which are designed to be suspended from the wall or of the room to be heated The object of t e invention is to provide a construction which afiords radiating surfaces of increased area and greater efiiciency and in which provision is made for .the complete drainage of the entire chamber of the radiator; The invention is exemplified in the structure-to be hereinafter described and which is illustrated ,in the accompanying drawings, wherein Figure 1 is a front elevation showing one form of the improved radiator in an upright position; 1

Fig. 2 is a detail lan sectional view taken 1 on the line 2-2 o Fig. 1 but drawn to a 7 construction on two different planes indilarger scale, n t Fig. 3 is an end view of the radlator illustrated in Figs. 1 and 2, the steam supply pipe and a detail of the wall. from which the radiator is supported being shown in section,

Fig. 4 is similar to Fig. 3 but shows the radiator supported from the ceiling,

Fig. 5 is a detail longitudinal section view taken on the plane indicated by the line 55 on Fig. 6,

Fig. 6 is a sectional view showing the cated by the broken line on 5,

Fig. 7 is similar to a detall of Flg. 5, but

7 shows a modified form of construction.

Fig; 8 is a plan view, showing an arrangement which may be used when 1t 1s desired that the radiator should rest upon the floor, some parts being broken away,

Fig. 9 is an-end view of the radiator illusr trated in Fig. 8, the steam supply pipe bein shown in section, and i Fig. 10 is a plan sectional view taken on the line 10l0 of Fig. 9.

The improved radiator will usually. comrise a plurality of connected sect ons as 10, 11, and 12, (Fig. 1) or 13, 14, (1 1g. In either case, each of the several sectlons 1s preferably of oblong rectangular shape and comprises a tubular header 15, or 16, at each end and a lurality of connecting columns 17 or 13. T e several sections are united by connecting the corresponding headers 15, or; 16, end to end. In the form of construction illustrated in Figs. 1 to 6 inclusive, these connections are made by the use of concealed mpples, as 19. Fig. 7 illustrates the use of an exposed connecting nipple generally deslgnated 20.

In each form of construction the several sections, as 10,11, and 12, (Fig. 1) or 13, and 14, (Fig. 7) of the complete radiator will usually be all alike. Furthermore, it is preferred that all of the columns as .17, 18, of each section should be of like size and shape.

It is alsd preferred that when the several l sections are connected the spacing between the adjacent columns of adjoining sections,

as at 21, (Fig. 1) or 22, (Fig. 7) should be uniform with the spacesbetween columns,

respondingly threadedhubs, as 25 or 26 at the corners of the adjacent sections. W en the concealed nipple,'as 19, isused, the hubs 25 are of such lengthas to be brought together upon a thin gasket, as 27, when the 7 space, as 21, between the columns of the adjacent sections is of the said desired width. In this form of construction, the nipple, as

19, is formed with shoulders 28 upon the inside for engagement with a radiator bar (not shown) inserted through the open hub 25 at the remote end of one of the radiator sections, in a well-known manner.

In the form of construction illustrated in Fig. 7, the connecting nipple20 is formed with a head 29, intermediate its ends, and

the hubs, as 26, of the radiator sections, are.

so shaped as to receive the said head 29 between them, when the space 22 between the adjacent columns of the adjoining sections is of like width with the spaces 24 between the columns withinf the said sections. In this instance the two ijendportions, as 30 and 31, of the connecting nipple 20 are tapered and oppositely threaded in accordance with the practice-usually employed when the radiator joints are to be made sufiioiently tight for the use of steam at high pressure.

In order that a large proportion of; the

radiating surface shall face outwardly when the radiator is supported in an upright position upon the wall, as in Fig. 3, the seva as of the adjacent header 15.

eral columns, as 17, are preferably formed in-the manner most clearly illustrated in Figs. 2 and 6. As shown, one of the faces, as 32, of each column 17 is flat and is flush with the corresponding sides of the headers, as

To avoid the necessity of providing hubs,

as 25 or 26, of unusual size, it is preferred I that the connecting nipples, as" 19 or 20, should not be of greater diameter than the 15. The other face, as 33, of each column bore of the corresponding headers 15, or 16.

17, is also made flat throughout theTgieateiportion of its length, but the flat portion of the face33 is located at afconsiderable distance outwardly beyond the plane of the adjacent sides of the headers 15. In the upright position of the radiator, a substantial portion of each column 17 thus overhangs the headers 15 at that side of the radiator which is remote from the supporting wall, as 40. To avoid the provision of horizontal surfaces upon which dirt-would be likely to accumulate, the front face 33 of each column 17 is inclinedinwardly at each end, as at 34: and 35 to join the corresponding side In cross section, the columns 17 preferably taper toward each face 32, 33, with the greatest width of the column located upon the same plane with the center lines of the headers 15. Under these circumstances the two faces 32, 33 of each column are relatively narrow and the outwardly facing surfaces, comprising the front face 33 and the forwardly inclined portions as'36, 37, of the =-two sides of the nolumn are of substantially greater area than the corresponding inwardly facing surfaces, as '32, 38 and 39.. Furthermore, the overhanging construction ofthe columns provides that when the radiator is supported in the upright position illustrated in Figs. 1 and 3, the entire front face of each column and a considerable portion of the side surfaces 36 and 37 are directly exposed to air which rises in front of the lower header 15. The formation of the radiator with a flat inner face ,and with the headersv 15 flush with the said flat face and of less diameter than the distance between the'front and rear faces 32, 33 of the columns, also provides that the distance be tween the rear face of the radiator and the" wall 40 will be relatively great in proportion to the length of the supportingbrackets, as

41 and 4:2.

When the radiator is to be supported from the ceiling as 43, the columns, as 17, are preferably horizontal with the extended or offset face 33 directed upwardly. Under these circumstances, the relatively narrow widt of the front face 33, and the steep in clination of the upwardly facing portions, as 36, 37, vof the sides of the nolnmns 17 substantially avoids any interference with a the efiectiveness of the radiator by the accumulation of dirt upon its surfaces. Any' convenient means may be employed forisup: porting the radiator. in the said horizontal position As shown, a trapeze form of Nevertheless, an efiicient drainage of the entire chamber of the radiator is insured if each hub 25 or 26 is offset from the axis of the header 15 or 16. As-shown, each hub 25 and 26 is so formed that the inside surface of the corresponding nipple, 19 or 20, when entered in the said hub, is flush with the inside wall of the corresponding header 15 or 16, both at the end of the section and upon the flat'side of the section. lit follows that when this construction is used no part L of the radiator chamber is below the openings through the nipples, 19 or 20, whether the radiator be supported in the upright position illustrated in Figs. 1 and 3, or in the horizontal position illustrated in Fig. 1. The possibility of air being confined in the radiator chamber, when hot water is employed as the heating fluid, is thereby substantially reduced and any impairment of the efficiency of the under surface of the radiator by accumulations of water within the radiator chamber, when steam is em-' ployed ,as the heating fluid, is whollyprevented. a p

The plan of avoiding horizontal surfaces upon'which dirt may'accumulate ispreferably also employed in the provision of inclined faces, as 45 and 4:6 uponv the inner side walls of the headers, as 15. The construction therefore not only provides a'r'elatively large area of radiating surface in a radiator of given external dimensions, but these surfaces are so formed as to be highly efiicient. The use of a relatively 'smalLnumber of sections, as 10,. 11,12, or 13, 14 for obtaining a given amount of radiating surface is accordingly permitted. The cost of installation is thus reduced both by the use of'a less number of sections and by a diminished cost of erection due to the requirement for making a less number of connec- 1710118 between the sections. 1

en it is desired to provide a' radiator" which may rest upon the floor, two sets of connected sections, 8.545, 46, 17 and 48, t9,

50 (Fig.8) are connected back to back. in thls instance, the sections 45, 426, 47 and 4:8,

49, 5001? each set are'conn ectedend to end by concealed nipples 19 in the manner all ready described with reference to the form of construction illustrated in Figs. 1 and 5. The terminal sections of each set, on the other hand, are formed with lateral hubs 51 near their outer ends, at both top and bot tom, and nipples 52 are employed for conmeeting the corresponding hubs 51 of the two sets. Preferably the hubs 51 are located to ,prevent trapping of water in the upright sections, in the same manner that this is prevented by the eccentric location of the hubs 25 and 26. In the arrangement shown, the nipples 52 are of the exposed type illustrated at 20 in Fig. 7.

With the sections 45, 46,47 and 48, 49, 50, located back to back, the projecting faces 33 of the sets of sections extend outwardly in opposite directions into the room and an unobstructed central upright flue 53 having straight vertical sides. 54, 55 Fig. 9) is provided. Stools 56' (only one of which is shown) may be located under the opposite ends of the radiator for supporting the same stantially horizontal tubular header, tubular columns extending above and communicating with the upper side 'of the said header, and a tubular nipple having a bore of a size not exceeding that of the header entering the bore of the header at one end with the axis of the nipple downwardly offset from the axis of the header.

2. y In a-radiator, in combination, a pair of parallel tubular headers, a plurality of tubular columns extending perpendicularly between and connecting the headers and tubular nipple receiving hubs formed upon the ends of the headers with the bores of the hubs communicating-with bores of the corresponding headers,.the two hubs upon each header being axially alined but outwardly offset from the axis of the said header.

3. In combination, a rectangular radiator section comprising a pair of parallel tubular headers and a plurality of tubular columns extending perpendicularly between and connecting the headers, and a tubular nipple receiving hub formed at each corner of the section with its bore communicatlng with the chamber of the section, the hubs at each of two adjacent cornersof the section being axially alined but outwardly offset from the "axis of the tubular member of the section which extends between the said corners. I r

4.-The combination with a radiator sectionwhich is flat on one side and comprises a plurality of parallel longitudinal columns each having v one straight side and a tiansverse header connecting the columns at one end of the section with the said straight sides" of the columns. flush with the corresponding side of the header, of a tubular nipple having a bore of a size not exceeding that of the header entering the bore of the header at one end of the same with the axis of the nipple parallel with the axis of the header but offset therefrom with the inside wall of the nipple flush with the inside wall of the header both at the said flat side'of the section and at the said end of thesection.

5. The combination with a radiator section which is flat on one side and comprises a plurality of parallel longitudinal columns each having one straight side and a transverse header connecting the columns at one end of the section with the said straight sides of the columns flush with the corresponding side of the header, of a tubular nipple having a bore of a size not exceeding that of the header entering the bore of the header at one end of the same with the axis of the nipple parallel with the axis of the header but ofl'set therefrom withthe inside wall of the nipple flush with the inside wall of the header at the said flat side of the section. v

6. In combination, a rectangularradiator section comprising a pair of parallel tubular headers'and a plurality of tubular columns extending perpendlcularly between and connecting the headers, the sides of the columns upon one face of the section being straight and in the same-plane with the corresponding sides of the headers, and a tubu-* lar nipple receiving hub formed upon one of the tubular members of the section at each corner of the section with its axis parallel to the mentioned face of the section but laterally offset from the axis of the tubular member on which it is formed in the direction of the said face.

7. In combination, a rectangular radiator section comprising a pairof parallel tubular headers and a pluralit of tubular columns extending perpendlcularly betweenlast mentioned axis and laterally from the' last mentioned axis in'the direction of the said face. I t I 8. In a radiator, in combination, two par allel sets of upright columns, substantially horizontalheaders connecting the columns of each set at the top and bottom, the inner face of the columns of each set being straight and in the same plane with the corresponding sides of the associated headers and the outer faces of the columns of each set projecting outwardly beyond the corresponding sides of the associated headers, and transverse nipples connecting the corresponding headers associated with the two sets of columns at both ends, the columns of the two sets and the associated headers being otherwise independent.

9. The combination with a radiator section comprising a plurality of parallel longitudinal columnsand a transverse header connecting the columns with no part of any of the columns extending outwardly beyond the side of the header upon one face of the section, of a tubular nipple havinga bore of a size not exceeding that'of the header entering the bore of the header at one end of the same with the axis of the nipple parallel with the axis of the header but o fiset therefrom with the inside wall of the nipple flush with the inside wall of the header at the said face of the section.

10. A radiator which is flat on one side ,a common plane, and transverse headers connecting the columns at their opposite ends, each header being no larger than the width of the adjacent ends of the columns throughout the main portion of its length and having one side in the same plane with the fiat sides of the columns.

AUGUST 

